The Ultra is a very nice car, drives and handles great, plus good mileage. It is 18 years old, and still gets noticed as a sharp car. Mine has only 128000 kms and is near mint. The seats are not as comfortable as older GM luxury cars. These cars are great overall and a lot of car for the money. The'91 has no supercharger. So less upkeep, and uses regular gas. Still lots of power.
It's more than just transportation, you feel good when you drive it. It has more class than imports and is still very affordable, great mileage too.
Seats lack padding, weak rear brakes, but these are minor flaws. Later model rear disc brakes may interchange.